{"nhtsa_id":10218550,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-22","date":"2021-08-04","document_id":"08-127-21","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING; ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Smart Lighting Module Left (SLML) and Smart Lighting Module Right (SLMR) Updates This bulletin involves reprogramming the SLML and SLMR with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: B2834-00 - Right Headlamp Assembly Performance. B2835-00 - Left Headlamp Assembly Performance. Customers may experience one or more of the following:?Service Headlamp? message appears in the information cluster. Headlamps only function on low beam, park lamp and side marker lamps.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10218550-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10218550-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10218550","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"},{"id":"software","name":"Software","parent":"electrical"}],"codes":["B2834","B2835"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_jeep_grand-cherokee"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}